A new method for simultaneous optical pulse compression and extinction ratio improvement of G-S lasers by using comb-like dispersion profiled fiber is proposed and experiment verified. The extinction ratio was improved about I0 dB, which permits almost penalty free 40 Gbit/s lOOkm OTDM transmission with the addition of asymmetry dispersion compensation approach.

The ENect of Stimulated Raman Scattering (SRS) on IPTralfc Based WDM Nehvorks is investigated by analytical method With consideration 01 modulation statistics, IP trallic load and diNemnt tralfc characteristics, the expmssions of SRS caused signal degradation in the shortest wavelength channel is obtained to evaluate network perlormance.

This paper presented a novel approach integrated recent advances in MPLS traffic engineering with wavelength switch/routing technologies to achieve optical interconnect for IP-centric Data Networks. New node architecture for scalable wavelength label switching networks (WLSnet) is proposed, which supported label switching and wavelength routing. This paper showed this network add more flexible routing, traffic engineering, and explicit routes via MPLS, is the best way to realize optical interconnects and to reduce management complication and cost of network. We have shown an approach to dynamically interconnect routers via wavelength, including a bypass routing in the node, by this way new wavelengths may easily be introduced to the network at a reasonable cost. This approach also paves the way for the eventual incorporation of DWDM multiplexing capabilities in IP routers, and establishes a preliminary framework for the notion of an optical Internet.

This paper proposes a novel dual-control nonlinear optical loop mirror configuration for all-optical demultiplexing. It is shown that the crosstalk arising from unwanted cross-phase-modulation is inherently removed, and the maximum jitter tolerance can be obtained without on/off degradation.